Home / 19,839.71-29,758.76-8,152.63

Finding the Fourth Proportional to 19,839.71, 29,758.76 and 8,152.63

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Solution

The fourth proportional to 19,839.71, 29,758.76 and 8,152.63 is: 12,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839.71 : 29,758.76 = 8,152.63 : x
  2. Step 2: Convert to fraction form
    19,839.71/29,758.76 = 8,152.63/x
  3. Step 3: Cross multiply
    19,839.71x = 29,758.76 × 8,152.63
  4. Step 4: Simplify right side
    19,839.71x = 242,611,969.98
  5. Step 5: Solve for x
    x = 242,611,969.98/19,839.71
  6. Step 6: Final answer
    x = 12,228.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.